Tire-remover.



A. LEW. TIRE REM OVER.

APPLICATION FILED JUNE 3!. 1915 1 s 3 Patented 0st. 16, 1917.

2 SHEETSSHEET 1.

v I INVENTOR @556? LEI y A TTORIVE Y8 invrTnn STATES raTnnT @TFTQE.

ALBERT new, or BAKER, onneon.

rrnn-nnntovnn.

Teac es.

Specification of Letters Patent.

rammed cat. is, 1917.

Application filed June 3, 1915. Serial No. 31,920.

To all whom it may concern:

Be it known that I, ALBERT LEW, a citizen of the United States, and a resident of Baker, in the county of Baker and State of Oregon, have invented a new and useful Improvement in Tire-Removers, of which the following is a specification.

My invention is an improvement in tire removers, and the invention has for its object to provide mechanlsm of the character specified, for use with demountable rims for jacent to the line.

The present embodiment of the invention comprises a suitable base composed of plates or blocks 1 and 2, or the like, superposed and connected together in any suit-able or desired manner. The holding mechanism for the rim consists of three clamps, the centraland one lateral clamp being fixed, while the other lateral clamp is movable toward and from the two first named clamps.

' The central clamp is mounted on a rod 3, which has itsopposite ends threaded and is providednear one end with a fixed stop 5 in the form of a collar on the rod. The rod is placed through an opening in the base 1 near the top thereof, and is engaged by a -ward the nut. brace 7, having at its upper end a collar 8,

nut 6 seated in a counterbore or recess in the rear face of the base. 7

The stop 5 engages the front face of the base to limit the movement of the rod to- The rod 3 is braced by a which embraces the rod, and the lower end of the braceis offsetinwardly toward the base as indicated'at 7 andis secured thereto by means of a bolt" or rivet 9 One of the lateral clamps is mounted on the rod 4*, which is similar to the rod 3 and mounted in the same manner, andthe other lateral clamp is mounted on the rod 4, which ismounted for movement with respect to the clamps on the rods 3 and 43. p

, Each of the clamps comprises cooperating clamping members or sections 9 and 9, mounted on the same shaft, and each section of each clamp is provided with a hub or bearing sleeve 10, fitting over the thread- I ed outer end of the shaft. tions 9 of the clamps are moved toward the The inner secouter sections by means of nuts 11, and the outer sections 9 are moved toward the inner sections by handle nuts 12.

Each clamping member is shaped to engage the edge of the rim 13 to becontracted. It will be noted that each clamping section consists of a plain horizontal portion and an arc-shaped portion integral therewith, the

bearing sleeve or hub 10 being below the horizontal portion, and the arc-shaped port on being at the outer end of the plain portion.

The horizontal portions extending beyond the inner ends of the sleeves 10 may act as stops to prevent crushing of the rim between the clamping members. The rod 4: is arranged at the upper end of an arm 14,

whoselower end is pivoted as indicated at -15 to a lever 16, which is pivoted to a post 17, extending laterally from the table at the outer side of the said rod 4.

It will be evident that when the outer end of the lever 16; is depressed, the rod d and the clamping member connected therewith 7 W111 also be depressed.

A lever 18 ispivoted at its lower end to a block 19 mounted to slide on a. rod 20, which is supported in openings in angular lugs 21 of plates 22, secured to the base. The plates 22 are in alinement, and are arranged with the openings of thelugs 21 in register. The rod 20 is held in the lugs, and the block 19 is arranged at the center of the rod. 7

Coil springs 23 encircle the rod on opposite sides of the block between the block and the bearing lugs 21. and the springs act normally to hold the block at a point half way between the bearing lugs. The lever is held in adjusted position by pins 24: on an arcshaped bar or sector 25, secured to the base above the rod 20. The pins are spaced apart from each other at equal distances and far enough to permit the lever to engage between them.

"'It will be noted from an inspection of Fig. 3 that the lower end of the lever 18 is "forked, and; the arms 26 of the fork engage opposite sides ofthe block 19, and are piv:

pins 2% of the sector 25.

oted thereto by means of oppositely extending Ournal pins 27 on the block.

A link 28 connects the lever 18 with the arm 14. near its upper end, and it will be evident that when the upper end of the lever is swung, the rod 4: and its clamping member will be moved toward or from the clamping member of the rod 3, depending upon the direction of the movement of the lever.

The lever 18 may yield however, at its lower end, compressing one or the other of the springs 23. The arm 1% is reinforced at its upper end by means of a bar 29. The said bar has a bearing 30 at its upper end which engages the shaft &, and the lower end of the bar is offset outwardly into contact with the inner face of the arm 14, and

is secured thereto as indicated at 31.

The body of the bar 29 is spaced apart inwardly from the arm 1% to receive the adjacent end of the link 28 between the bar and the arm, and the pivotal connection 32 of the link passes through both arm and bar. The post 17 is braced at its outer end by an inclined brace 33. The lower end of this brace engages the post at its outer end, and the upper end ,ofthe brace is ofl setinwardly to a connection with the base.

A bar S 1 is arranged between the rod 4? and the base. One end of the bar 34 has an opening for receiving the rod 1 and the bar engages the rod ust outside a nut 35 on the rod. The opposite end of the bar 3% is offset inwardly to a connection with the base at the upper end of the brace 33, before mentioned.

The operation of the remover is as follows .Vhen it is desired to place a tire for instance. the rim 13 is arranged as shown in Fig. 1. The sections of each clamp are separated by turning the handle nuts 12, until the rim willengage between the sections of the clamps. The sections are then moved toward each other to clamp the rim between the sect-ions of the respective clamps. At this time the lever 18 is at the position shown in Fig. 1, being held in such position by the With the rimso clamped the outer end of the lever 16 is depressed.

This movement of the lever draws'the arm 14 downward and the rod 41 which supports the adjacent clamping mechanism is moved, therewith drawing one end of the split rim downward as shown, while the other end is held in clamped position by the clamps on the rods 3 and P. The operator new releases the lever 18 from the pins 24 and swings it inethe direction of the arrow in Fig. 1. The link 28 is drawn with the lever 18, and the arm 1 1 is swung in a direction tomove the clamp on the rod 41 toward the clamp on the rod 3, and the split ends of the rim are overlapped, as shown in Fig. 2, that end connected with the clamp on the rod at moving with respect to that end in the clamp on the rod 3.

The rim is now contracted, and in position to receive the tire which may be slipped over the sections 9 of the clamps. It will vbe noted that the arc-shaped portions of these sections are spaced apart far enough to permit the seating of the tire. After the tire has been placed, the lever 18 is'released from the pins 24:, and permitted to swing into the position of Fig. l. The lever 16 is then released, and the ,splitcends of the rim resume their normal position. To remove the tire .the operation is precisely the same as above specified. V a

The rim lock 36 preventsexcess movement of the movable end of the rim beyond nor mal position. In placing the tire the movable end or the rim may be forced into the normal position by moving the lever 16 up-. I

ward after the lever 18has been, released as above specified. One man can easily remove or replace a tire with theabove mechanism.

The provision of two clamps for the fixed end of the rim prevent-s distortioncf the said end, since the two clamps grip the said ends in spaced relation.

It will be understood that the rod 20,may be mounted to move in the lugs 21 if de sired, the block 19 being rigid with the of the lever for moving the clamp downward, a second lever, a connection between the said lever and the arm for swinging the clamp toward the first-named clamp, said second lever having a pivotal mounting,

and the pivotal mounting being mounted to yield with respect to the base.

2. A device of the character specified, comprising a base, a pair of clamps, one of which is rigidly connected with the base. an arm connected at its upper end with the other clamp, a lever pivoted to the base and connected to the arm intermediate theends of the lever for moving the clamp downward, a second'lever, and a connection between the said lever and the arm for swinging the clamp toward the first-named clamp.

3. In a machine for contracting and expanding a split rim, means for securing the rim upon one side of thesplit, a clamp engaging the rim upon the opposite side of the split, means for moving the clamp inward to disaline the ends of the rim, and other means for moving the clamp toward the rim securing means to contract the rim.

4.. Ina machine for contractingand expending a split rim, fixed clamping means rim engaged thereby to slide beneath the end foi' engagiing the rim upolll1 one side of tlhe of the rim held by the fixed clamping means. Sp it, a 0 am enga im t e rim u on t e opposite side of the spiit, a lever fgr m0v-. I ALBERT ing the clamp to cause one end of the rim Witnesses:

to clear the other end, and a second lever for H. A. SONNE,

moving the clamp to cause the end of the T. H. DUNPHY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

